Feature Request

Context

We should introduce an env variable or file that includes the image version. I see two main benefits from that:

• We could include the version information in the startup script, which makes it easier to identify the used version (e.g. when helping with issues).
• It should be easy to implement a cron based update check to see, if there is a new release available.

"Disadvantage":

• Each time we release a new version, this env variable/file must be updated.

Describe the Solution you'd like

Env variable or file containing the image version. I prefer the file solution. What are your thoughts?

Are you going to implement it?

Yes, because I know the probability of someone else doing it is low and I can learn from it.

What are you going to contribute??

The necessary adjustments.